13 71... Removing acoustic covers (N57 D30 O/T 1)

Necessary preliminary work: 

• Only if rear acoustic cover needs to removed: 

  Remove INTAKE SILENCER HOUSING .

  Remove ACOUSTIC INSULATION for bulkhead, center.

• Only if front acoustic cover needs to removed: 

  Remove FAN COWL .

• Only if bottom acoustic cover needs to removed: 

  Remove front UNDERBODY PROTECTION .

  Only F12 and all-wheel drive vehicles: 

  Remove STIFFENING PLATE

• Only if acoustic cover on oil sump needs to removed: 

  Lower front axle support  . See 31 11 506 LOWERING/RAISING FRONT AXLE SUPPORT (UNIVERSAL LIFTER) or 31 11 506 LOWERING/RAISING FRONT AXLE SUPPORT (ALL-WHEEL DRIVE VEHICLE) .

Remove rear acoustic cover: 

Release positive battery cable (1) from clamps.

Release expanding rivets (2).

Remove rear acoustic cover (3).

Fig 1: Identifying Acoustic Cover, Positive Battery Cable And Rivets

Courtesy of BMW OF NORTH AMERICA, INC.

Remove front acoustic cover: 

Release screws (1).

Remove front acoustic cover (2).

Fig 2: Identifying Acoustic Cover Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove bottom acoustic cover: 

Release screws (1).

Remove bottom acoustic cover (2).

Fig 3: Identifying Acoustic Cover Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove front acoustic cover on oil sump: 

Release positive battery cable from clamp (1).

Unfasten screws (2).

Feed out front acoustic cover (3) on oil sump to the rear and remove.

Fig 4: Identifying Acoustic Cover Screws And Positive Battery Cable Clamp

Courtesy of BMW OF NORTH AMERICA, INC.